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February 12-13 Storm IV, Model Discussion


stormtracker

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  On 2/13/2014 at 4:25 AM, snowfan said:

HRRR starting to show totals nearing 2 ft.

 

   The HRRR is initialized by Version 2 of the RAP which is being implemented at NCEP in 2 weeks.     That parallel RAP is showing a ridiculous 0.75 - 1" of liquid in the *3-hr* period from 9z to 12z in the DCA-BWI corridor, so the HRRR is clearly keying off of whatever is making the parallel RAP go bonkers.

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  On 2/13/2014 at 4:36 AM, high risk said:

The HRRR is initialized by Version 2 of the RAP which is being implemented at NCEP in 2 weeks.     That parallel RAP is showing a ridiculous 0.75 - 1" of liquid in the *3-hr* period from 9z to 12z in the DCA-BWI corridor, so the HRRR is clearly keying off of whatever is making the parallel RAP go bonkers.

EMC? NCO? Computer response?

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  On 2/13/2014 at 4:44 AM, nw baltimore wx said:

I drove down Greenspring Valley Rd on the way home today.  Thought of you.  Stevenson Rd coming out of the valley was already a mess.

Thanks, I will have to rely on your measurements for my official totals so measure closely please :).

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  On 2/13/2014 at 4:41 AM, ohleary said:

EMC? NCO? Computer response?

 

   not exactly sure what you're asking, but the HRRR is run at ESRL in Boulder using their version of the RAP Version 2 (V2) as initial conditions.   It's the same RAP being implemented by NCEP in two weeks, and I was saying that given how juicy the RAP V2 is tonight, it's not surprising that the HRRR is going crazy too.

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